مستويات المجال المغناطيسي من خطوط الضغط العالي في محافظة بيت لحم Magnetic fields from high voltage power lines in Bethlehem District

Date
2015-06-03
Authors
فادي حسين احمد عثمان
fadi hussein ahmad othman
Journal Title
Journal ISSN
Volume Title
Publisher
AL-Quds University
جامعة القدس
Abstract
Because of the huge request for electricity in the modern life, the transmission line networks have been extended for a long distances through countries. So some farms can be under the transmission line network. The vicinity of residences to overhead power lines has been a factor of concern for public health. Several studies has been developed in order to establish a relationship between the magnetic fields due the power lines and the health of people. The aim of this study is to investigate the result of magnetic fields levels from high voltage power lines and electric transformers and cabinets in 176 locations, 100 high voltage power lines and 76 transformers and electric cabinet distributed over the Bethlehem District, these locations includes centers of the city, highly populated areas as well as rural areas. All measurements were conducted at a high of 1 m above the ground level using spectrum analyzer (NF 5030) with 3D antennas capable of collecting magnetic field from 0Hz to 300Hz. The average magnetic field from high voltage power lines are (0.6 µT) , the average magnetic field from electric transformers are (4µT ) , the average magnetic field from electric cabinet are (28 µT), the average value of magnetic field levels from high voltage power lines and electric transformers and cabinet under the permissible level (100µT) recommended by the International Commission on Non-Ionizing Radiation Protection for general public, maximum result of magnetic field from high voltage power lines are ( 3 µT) ,this value below the limit (100µT) recommended by ICNRP , the maximum result of magnetic field from electric transformers are (8 µT) , this value are below the limit (100µT) recommended by ICNRP , the maximum result of magnetic field from electric cabinet are (123 µT) ,this value above the limit (100µT) recommended by ICNRP
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Keywords
الدراسات البيئية, Environmental Studies
Citation